Fermi γ暴在ARGO-YBJ和AS γ实验中的流强研究  

Fluence Study of the Fermi GRBs in ARGO-YBJ and AS γ

作　　者：张宇[1] 章桓 苏晋峰 张凯[1] 任云飞[1] 周勋秀[1] 

机构地区：[1]西南交通大学现代物理研究所,四川成都610031

出　　处：《四川师范大学学报（自然科学版）》2017年第1期94-100,共7页Journal of Sichuan Normal University（Natural Science）

基　　金：国家自然科学基金(11475141)

摘　　要：分析2008—2015年Fermi卫星观测到的所有γ射线暴,并将这些Fermiγ暴的能谱延伸到ARGO-YBJ与ASγ实验的工作能区,计算其到达羊八井地面实验中的流强.结果表明:对于在羊八井视场范围内且光子能量在Ge V能区的Fermiγ暴,若不考虑河外背景光子的吸收效应,ARGO-YBJ实验运行期间内,在其灵敏度范围内的有3个;新升级的ASγ实验运行期间内,在其灵敏度范围内的有4个.最后讨论有机会被ARGO-YBJ实验探测到的3个γ暴未得到正结果的原因.此研究为羊八井地面实验与卫星γ射线暴的符合寻找提供重要信息.After analyzing the data of GRBs which are observed by the Fermi satellite from 2008 to 2015,and extending energy spectra of these GRBs to the energy range of the ARGO-YBJ and AS γ experiment,fluence of these GRBs can be calculated. The result shows that,for Fermi GRBs in the Yang Ba Jing field of view whose energy is in Ge V,when the influence of EBL（ Extragalactic Background Light） is overlooked,3 GRBs are within the sensitivity of the ARGO-YBJ experiment during its work period and 4 GRBs are within the sensitivity of the upgraded AS γ experiment during its work period. Finally,the reason why there are no positive results about these 3 GRBs,possibly detected by the ARGO-YBJ experiment,is discussed. This study provides important information for ground-based experiments in coincidence with the satellite detection to detect GRBs.

关 键 词：Fermi卫星 Γ暴 ARGO-YBJ实验 ASγ实验 流强 

分 类 号：O572[理学—粒子物理与原子核物理]